Core drill bit



FIG. 1 is an isometric view of a core drill bit showing my new design;

FIG. 2 is one side view thereof;

FIG. 3 is another side view thereof;

FIG. 4 is another side view thereof;

FIG. 5 is another side view thereof, all sides apperring diffrently;

FIG. 6 is a rear view thereof; and,

FIG. 7 is a front view thereof. 

The ornamental design for a new core drill bit, as shown and described. 